Character
你
UTF-8 Hex
e4 bd a0
Encoding & Decoding
UTF-8 Bytes and Code Point Viewer
Inspect each character’s UTF-8 bytes, hex form, and code points. Useful for debugging emoji, multi-byte CJK, and length-limit issues. Analysis runs locally in the browser.
UTF-8BytesUnicode
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UTF-8 Byte Viewer
Inspect each character’s UTF-8 bytes, hex form, and code points. Useful for debugging emoji, multi-byte CJK, and length-limit issues. Analysis runs locally in the browser.
Byte Analysis Grid
状态：等待输入
1 Byte (ASCII) 2 Bytes (Latin Ext) 3 Bytes (Hanzi) 4 Bytes (Emoji)
Use cases
- See how many UTF-8 bytes an emoji uses
- Debug mojibake from byte-based truncation
- Compare code points with hex byte sequences
How to use
- Enter text with CJK, emoji, or other characters
- Review per-character byte and code-point cards
- Copy the analysis result if needed
Example input and output
FAQ
Why does one emoji use multiple bytes?
UTF-8 encodes non-ASCII characters with multiple bytes; many emoji use 4 bytes. Some emoji are sequences of several code points, which adds more bytes.
How does this differ from the Unicode converter?
Unicode conversion focuses on \u escape round-trips. This viewer shows actual UTF-8 byte sequences and code points for storage length and truncation behavior.
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